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How useful is quantitative risk assessment
How thin is thin, exactly
Population Assessment of Tobacco and Health, uncertain directionality (i.e., pre-existing respiratory conditions were not always ruled out), confounding by other combustible tobacco use, and small sample sizes
An analysis of the dataset analyzed here found that details of the immediate circumstances surrounding smoking episodes, reported at the time a cigarette was recorded, prospectively predicted subsequent success at smoking cessation (Shiffman et al, 2007)
Unfiltered Cigarettes: Which One Is Right For You